rectangular prism
Square pyramid
The three-dimensional shape consisting of 4 triangles is called a pyramid, or a triangular prism.
duodecahedron is a 3D shape that has 20 triangles as it's base
A tetrahedron (triangular pyramid).
A triangular prism
Square pyramid
Cube
There can be no closed 3D shape with only one square and 3 triangles.
cone
A 3D shape with all triangular faces can be a tetrahedron pyramid.
Tetrahedron.
Yes.
The three-dimensional shape consisting of 4 triangles is called a pyramid, or a triangular prism.
The simplest such shape is PYRAMID.
duodecahedron is a 3D shape that has 20 triangles as it's base
An icosahedron.
A triangular pyramid.